add skript to test and debug VILLASweb in our K8S cluster

k8s_test.sh

 #!/bin/bash
 
-kubectl -n services port-forward svc/postgres-postgresql 5432:5432 & PF1=$!
-kubectl -n services port-forward svc/broker 5672:5672 & PF2=$!
+set -e
 
-NS=villas-demo
+NS=${NS:-villas}
+MK="minikube"
+KCTL="kubectl -n${NS}"
+HELM="helm -n${NS}"
+# CHART="villas"
+CHART="~/workspace/rwth/acs/public/catalogue/charts/villas"
 
-POSTGRES_USER=$(kubectl -n ${NS} get secret postgres-credentials -o json | jq -r .data.username | base64 -d)
-POSTGRES_PASS=$(kubectl -n ${NS} get secret postgres-credentials -o json | jq -r .data.password | base64 -d)
-RABBITMQ_USER=$(kubectl -n ${NS} get secret postgres-credentials -o json | jq -r .data.username | base64 -d)
-RABBITMQ_PASS=$(kubectl -n ${NS} get secret postgres-credentials -o json | jq -r .data.password | base64 -d)
+CONFIG=$(mktemp)
+NAME="villas"
 
-go test ./routes/healthz -p 1 --args \
-	-mode test \
-	-db-host localhost -db-name villas \
-	-db-user ${POSTGRES_USER} -db-pass ${POSTGRES_PASS} \
-	-amqp-host localhost \
-	-amqp-user ${RABBITMQ_USER} -amqp-pass ${RABBITMQ_PASS}
+function cleanup() {
+	kill $PF1 $PF2 $PF3
+	wait $PF1 $PF2 $PF3
 
-kill $PF1 $PF2
-wait $PF1 $PF2
+	rm ${CONFIG}
+
+	echo "Goodbye"
+}
+trap cleanup EXIT
+
+if [ -n "${USE_MINIKUBE}" ]; then
+	MK_START_OPTS="--addons=ingress"
+	if [ $(uname -s) == Darwin ]; then
+		# https://github.com/kubernetes/minikube/issues/7332
+		MK_START_OPTS+="--vm=true"
+	fi
+
+	${MK} start ${MK_START_OPTS}
+
+	kubectl -n kube-system expose deployment ingress-nginx-controller --type=LoadBalancer || true
+
+	IP=$(minikube ip)
+	PORT=$(kubectl -n kube-system get service ingress-nginx-controller --output='jsonpath={.spec.ports[0].nodePort}')
+	
+	# Add pseudo hostname to /etc/hosts
+	echo "Please provide your root password for modifiying /etc/hosts"
+	sudo sed -in "/^${IP}.*/d" /etc/hosts
+	echo "${IP} minikube" | sudo tee -a /etc/hosts
+
+	HELM_OPTS="--set web.backend.enabled=false \
+			   --set web.backend.external.ip=${IP} \
+			   --set web.backend.external.port=4000 \
+			   --set web.admin.password=admin \
+			   --set ingress.host=minikube"
+
+	# Check if chart has already been deployed before
+	if helm get values villas > /dev/null; then
+		RABBITMQ_ERLANG_COOKIE=$(kubectl get secret --namespace default villas-broker -o jsonpath="{.data.rabbitmq-erlang-cookie}" | base64 --decode)
+		RABBITMQ_PASSWORD=$(kubectl get secret --namespace default villas-broker -o jsonpath="{.data.rabbitmq-password}" | base64 --decode)
+		
+		HELM_OPTS+=" --set broker.auth.password=${RABBITMQ_PASSWORD} --set broker.auth.erlangCookie=${RABBITMQ_ERLANG_COOKIE}"
+	fi
+
+	${HELM} upgrade \
+		${HELM_OPTS} \
+		--install \
+		--create-namespace \
+		--wait \
+		--repo https://packages.fein-aachen.org/helm/charts \
+		${NAME} ${CHART}
+fi
+
+# Get backend config from cluster
+${KCTL} get cm ${NAME}-web -o 'jsonpath={.data.config\.yaml}' > ${CONFIG}
+
+# Enable access of backend to db, broker and s3
+export DB_HOST=localhost
+export DB_PASS=$(${KCTL} get secret ${NAME}-database -o 'jsonpath={.data.postgresql-password}' | base64 -d)
+
+export AMQP_HOST=localhost
+export AMQP_PASS=$(${KCTL} get secret ${NAME}-broker -o 'jsonpath={.data.rabbitmq-password}' | base64 -d)
+
+export AWS_ACCESS_KEY_ID=$(${KCTL} get secret ${NAME}-s3 -o 'jsonpath={.data.accesskey}' | base64 -d)
+export AWS_SECRET_ACCESS_KEY=$(${KCTL} get secret ${NAME}-s3 -o 'jsonpath={.data.secretkey}' | base64 -d)
+
+# Setup port forwards for backend
+if [ -n "${USE_EXTERNAL_POSTGRESQL}" ]; then
+	kubectl -n postgresql port-forward svc/postgresql 5432:5432 & PF1=$!
+else
+	${KCTL} port-forward svc/${NAME}-database 5432:5432 & PF1=$!
+fi
+${KCTL} port-forward svc/${NAME}-broker 5672:5672 & PF2=$!
+
+sleep 2
+
+if [ -n "${USE_MINIKUBE}" ]; then
+	# python -mwebbrowser http://minikube:${PORT}
+	echo
+	echo "==========================================="
+	echo "Access VILLASweb at http://minikube:${PORT}"
+	echo "==========================================="
+	echo
+fi
+
+go run start.go -config ${CONFIG}